The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2023
Filed:
Dec. 20, 2018
Yoshino Gypsum Co., Ltd., Tokyo, JP;
Yukiko Chatani, Chiyoda-ku, JP;
Mariko Seki, Chiyoda-ku, JP;
Takahiro Hebiishi, Chiyoda-ku, JP;
Eiichi Kuroda, Chiyoda-ku, JP;
Wataru Ohuchi, Chiyoda-ku, JP;
Takuji Yamashita, Chiyoda-ku, JP;
Kouji Yamakata, Chiyoda-ku, JP;
Yoshino Gypsum Co., Ltd., Tokyo, JP;
Abstract
A fireproof covered structure for covering a penetration part formed in a fireproof beam of a wooden building to make the penetration part fireproof, wherein a tubular fireproof covering material is attached to the penetration part while covering an inner peripheral surface of the penetration part. The tubular fireproof covering material is formed by stacking a plurality of gypsum board pieces cut out from commercially available gypsum boards of thicknesses of 9.5 mm to 25.5 mm, in the thickness direction and unitarily connecting the gypsum board pieces. The tubular fireproof covering material is inserted into and attached to the penetration part such that a connecting portion That connects gypsum board pieces That are adjacent in the stacking direction is disposed at a boundary portion between a structural member and a covering member of the fireproof beam, or at a portion close to the boundary portion.